Rapporti Tecnici
Autori: | Marco Beccuti |
Lorenzo Capra | |
Massimiliano De Pierro | |
Giuliana Franceschinis | |
Simone Pernice | |
Area Scientifica: | Performance Evaluation |
Titolo: | Deriving Symbolic Ordinary Differential Equations from Stochastic Symmetric Nets without Unfolding |
Apparso su: | TR-INF-2018-07-03-UNIPMN |
Editore: | DiSIT, Computer Science Institute, UPO |
Anno: | 2018 |
URL: | http://www.di.unipmn.it...R-INF-2018-07-03-UNIPMN.pdf |
Sommario: | This report concerns the quantitative evaluation of Stochastic Symmetric Nets (SSN) by means of a fluid approximation technique particularly suited to analysing systems with huge state space. In particular a new efficient approach is proposed to derive the deterministic process approximating the original stochastic process through a system of Ordinary Differential Equations (ODE). The intrinsic symmetry of SSN models is exploited to significantly reduce the size of the ODE system while a symbolic calculus operating on the SSN arc functions is employed to derive such system efficiently, avoiding the complete unfolding of the SSN model into a Stochastic Petri Net (SPN) |